/**
 * ==============================================================================
 * SHERYL'S ROMANTIC BIRTHDAY WEB APP — GLASSMORPHIC NAVBAR STYLES
 * ==============================================================================
 */

.main-navbar {
  position: fixed;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 990;
  width: calc(100% - 2.5rem);
  max-width: 1100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.25rem;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-full, 9999px);
  box-shadow: 0 10px 30px -5px rgba(232, 122, 144, 0.15), 0 0 20px rgba(212, 175, 55, 0.12);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.main-navbar.is-scrolled {
  top: 0.75rem;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08), 0 0 25px rgba(212, 175, 55, 0.2);
  border-color: rgba(212, 175, 55, 0.45);
}

/* Brand Logo */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-charcoal, #2B2D42);
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  transition: transform 0.25s ease;
}

.nav-brand:hover {
  transform: scale(1.03);
}

.nav-brand-heart {
  color: var(--color-rose-deep, #E87A90);
  font-size: 1.1rem;
  animation: heartPulse 1.6s ease infinite;
  display: inline-block;
}

.nav-brand-title {
  background: linear-gradient(135deg, #78283B 0%, #D4AF37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Desktop Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.95rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-charcoal, #2B2D42);
  text-decoration: none;
  border-radius: var(--radius-full, 9999px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.nav-link i {
  font-size: 0.85rem;
  color: var(--color-rose-deep, #E87A90);
  transition: transform 0.25s ease, color 0.25s ease;
}

.nav-link:hover {
  color: var(--color-rose-deep, #E87A90);
  background: rgba(232, 122, 144, 0.1);
}

.nav-link:hover i {
  transform: scale(1.18);
  color: var(--color-gold-dark, #996515);
}

/* Active Page Indicator */
.nav-link.is-active {
  background: linear-gradient(135deg, #FAD0C4 0%, #FFD1FF 100%);
  color: #78283B;
  box-shadow: 0 4px 12px rgba(232, 122, 144, 0.25);
  border: 1px solid rgba(212, 175, 55, 0.4);
}

.nav-link.is-active i {
  color: #78283B;
}

/* Mobile Hamburger Button */
.nav-toggle-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.25rem;
  color: #78283B;
  cursor: pointer;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  border-radius: var(--radius-md, 12px);
  transition: background 0.2s ease;
  align-items: center;
  justify-content: center;
}

.nav-toggle-btn:hover {
  background: rgba(232, 122, 144, 0.12);
}

/* Mobile Drawer Overlay & Menu */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  height: 100dvh;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
  z-index: 998;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border-left: 1px solid rgba(212, 175, 55, 0.3);
}

.mobile-nav-drawer.is-open {
  right: 0;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(43, 45, 66, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 997;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.mobile-drawer-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #78283B;
}

.mobile-drawer-close {
  background: rgba(232, 122, 144, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #78283B;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

.mobile-drawer-close:hover {
  background: #E87A90;
  color: #fff;
  transform: rotate(90deg);
}

.mobile-nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.15rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #2B2D42;
  text-decoration: none;
  border-radius: var(--radius-lg, 16px);
  transition: all 0.25s ease;
  border: 1px solid transparent;
}

.mobile-nav-link i {
  font-size: 1.1rem;
  width: 24px;
  color: #E87A90;
  text-align: center;
}

.mobile-nav-link:hover,
.mobile-nav-link.is-active {
  background: linear-gradient(135deg, rgba(250, 208, 196, 0.6) 0%, rgba(255, 209, 255, 0.6) 100%);
  color: #78283B;
  border-color: rgba(212, 175, 55, 0.35);
  transform: translateX(4px);
}

.mobile-drawer-footer {
  margin-top: auto;
  text-align: center;
  font-size: 0.82rem;
  color: #8C6A72;
  font-family: 'Plus Jakarta Sans', sans-serif;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
}

/* Adjust layout on smaller screens */
@media (max-width: 960px) {
  .nav-menu {
    display: none;
  }
  .nav-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .main-navbar {
    padding: 0.5rem 1rem;
  }
}

/* Top margin compensation for pages when navbar is present */
.page-top-spacer {
  padding-top: 5.5rem;
}